Science Definitions?

Question

What are the definitions of: Biotic Limiting Factors, Abiotic Limiting Factors, Pollution (point sources), and Pollution (non-point sources)? Please try to make them short. Thanks

Answer 1

Biotic factors: things that come from living things. An example is grass for cows.

Abiotic factors: things that come from non-living things. An example is light for grass.

Point sources: pollution that comes from a single location, such as factory air pollution.

Non-point sources: pollution that comes from many areas, such as contaminated stormwater runnoff.